CompareExchange128 Error on Windows 8.1 update

Discussions related to using VirtualBox on Mac OS X hosts.
Post Reply
Enkidus
Posts: 3
Joined: 22. Oct 2013, 17:04

CompareExchange128 Error on Windows 8.1 update

Post by Enkidus »

Currently running VirtualBox 4.3 with 4.3 extension pack installed on iMac (2.5GHz Core i5). Can't upgrade from Windows 8 to 8.1 as being told "You can’t install Windows 8.1 Preview because your processor doesn’t support CompareExchange128″ Any ideas?
noteirak
Site Moderator
Posts: 5229
Joined: 13. Jan 2012, 11:14
Primary OS: Debian other
VBox Version: OSE Debian
Guest OSses: Debian, Win 2k8, Win 7
Contact:

Re: CompareExchange128 Error on Windows 8.1 update

Post by noteirak »

Switch your VM OS type to Windows 8.1 first
Hyperbox - Virtual Infrastructure Manager - https://apps.kamax.lu/hyperbox/
Manage your VirtualBox infrastructure the free way!
Enkidus
Posts: 3
Joined: 22. Oct 2013, 17:04

Re: CompareExchange128 Error on Windows 8.1 update

Post by Enkidus »

Thanks, that sorted it... :D
BuzyBee
Posts: 1
Joined: 28. Mar 2014, 13:50

Re: CompareExchange128 Error on Windows 8.1 update

Post by BuzyBee »

Thanks! Never thought of doing that. Working for me now as well. :D
Dmeeren
Posts: 1
Joined: 8. Oct 2015, 20:34

Re: CompareExchange128 Error on Windows 8.1 update

Post by Dmeeren »

Haha! I use FreeBSD and it also works with windows 10 ;-) Thankyou!
Post Reply